Download DNA practice test

DNA
Name:
1.
Which molecule has the shape of a double-stranded helix?
A.
2.
C.
ADP
D. ATP
adenine
B.
uracil
C.
guanine
D. thymine
cell wall
B.
plasma membrane
C.
ribosomes
D. chromosomes
adenine
B.
cytosine
C.
thymine
D. guanine
In a DNA molecule, the number of guanine nucleotides will most likely equal the number of
A.
6.
DNA
Which nitrogenous base is normally present in DNA but absent from RNA?
A.
5.
B.
Within a cell, DNA is chie y found in the
A.
4.
RNA
In molecules of DNA, which nitrogenous base bonds with adenine
A.
3.
Date:
adenine nucleotides
B.
thymine nucleotides
C.
cytosine nucleotides
D. ribose nucleotides
Based on structure, in what way do DNA molecules di er from RNA molecules?
A.
RNA contains the base uracil; DNA does not contain uracil.
B.
DNA is composed of two chains of nucleotides; RNA is composed of three chains of nucleotides.
C.
RNA is helical; DNA is branched.
D. DNA is composed of four di erent bases; RNA is composed of three di erent bases.
page 1
DNA
7.
8.
Within a living cell, which organelles are necessary for process 2 to occur?
A.
centrioles
B.
lysosomes
C.
Golgi bodies
D. ribosomes
Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown.
Present in the nucleus of a cell
9.
A.
DNA molecules, only
B.
RNA molecules, only
C.
Both DNA and RNA molecules
D. Neither DNA nor RNA molecules
Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown.
Carry genetic information from the nucleus to the ribosomes
10.
A.
DNA molecules, only
B.
C.
Both DNA and RNA molecules
D. Neither DNA nor RNA molecules
Deoxyribonucleic acid molecules serve as a template for the synthesis of molecules of
A.
11.
RNA molecules, only
amino acids
B.
carbohydrates
C.
messenger RNA
D. lipids
C.
fatty acids
D. nucleotides
A molecule of DNA is a polymer composed of
A.
glucose
B.
amino acids
page 2
DNA
12.
If a portion of a messenger RNA molecule contains the base sequence A{A{U, the corresponding transfer RNA
base sequence is
A.
13.
A{A{U
B.
G{G{T
C.
T{T{C
D. U{U{A
Base your answer(s) to the following question(s) on the diagram below, which represents some biochemical
reactions involved in a cellular process, and on your knowledge of biology.
What is an example of a molecule produced by this type of process?
A.
glucose
B.
glycogen
C.
page 3
a fatty acid
D. a protein
DNA
14.
Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown.
Composed of nitrogenous bases, sugar molecules, and phosphate units.
A.
15.
16.
17.
DNA molecules, only
B.
RNA molecules, only
C.
Both DNA and RNA molecules
Which is a characteristic of mutations?
A.
They usually produce dominant traits.
B.
They usually are expressed in the next generation.
C.
They meet a species' need.
D. They occur randomly.
Speci c proteins produced in a cell are directly related to the
A.
number of mitrochondria in the cell
B.
type of ribosomes in the cell
C.
sequence of sugars and phosphates in the cell
D. sequence of nucleotides in the DNA of the cell
Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown.
May attach to ribosomes
A.
DNA molecules, only
B.
RNA molecules, only
page 4
C.
Both DNA and RNA molecules
DNA
18.
19.
If strand B represents messenger RNA, it would transport the genetic code from the
A.
ribosome to the nucleus
B.
nucleus to the ribosome
C.
mitochondria to the nucleus
D. nucleus to the mitochondria
Base your answer(s) to the following question(s) on the diagram below, which contains arrows representing di erent
processes occurring in a cell, and on your knowledge of biology.
Which processes occur in the nucleus?
A.
1 and 2
B.
2 and 3
C.
page 5
3 and 4
D. 4 and 5
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DNA
1.
Answer:
B
2.
Answer:
D
3.
Answer:
D
4.
Answer:
C
5.
Answer:
C
6.
Answer:
A
7.
Answer:
D
8.
Answer:
C
9.
Answer:
B
10.
Answer:
C
11.
Answer:
D
12.
Answer:
D
13.
Answer:
D
14.
Answer:
C
15.
Answer:
D
16.
Answer:
D
17.
Answer:
B
18.
Answer:
B
19.
Answer:
A
02/01/2013